That's due to normal precession... over time, the ground track moves eastward, causing the workable passes to occur about 28 minutes earlier each day. You'll soon see workable passes in the evening, which will work their way into the afternoon as they get earlier, day by day.
What goes around, comes around.
George, KA3HSW
----- Original Message ----
From: David Wing david@cdwing.com To: AMSAT BB amsat-bb@amsat.org Sent: Thu, September 29, 2011 9:50:24 AM Subject: [amsat-bb] AO-27 Scheduler
Has the schedule on AO-27 changed radically?
Here in the western US I've been used to being able to work AO-27 twice during the early afternoon but now it seems like the transmitter operation is during the wee hours of the morning. Has something changed in the last few months while I have been off the birds?
David
K6CDW